868679 has 4 divisors (see below), whose sum is σ = 992784. Its totient is φ = 744576.

The previous prime is 868669. The next prime is 868691. The reversal of 868679 is 976868.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 868679 - 2⁴ = 868663 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62042 + ... + 62055.

It is an arithmetic number, because the mean of its divisors is an integer number (248196).

2⁸⁶⁸⁶⁷⁹ is an apocalyptic number.

868679 is a deficient number, since it is larger than the sum of its proper divisors (124105).

868679 is a wasteful number, since it uses less digits than its factorization.

868679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124104.

The product of its digits is 145152, while the sum is 44.

The square root of 868679 is about 932.0295059707. The cubic root of 868679 is about 95.4156853845.

The spelling of 868679 in words is "eight hundred sixty-eight thousand, six hundred seventy-nine".